A micropower low-distortion digital pulsewidth modulator for a digital class D amplifier

• Main Authors: Bah, Hwee Gwee, Chang, Joseph Sylvester, Li, Huiyun
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/91303; http://hdl.handle.net/10220/4683
• Institution: Nanyang Technological University

We describe the design of a micropower digital pulsewidth modulator (PWM) for a hearing instrument Class D amplifier. The PWM embodies a novel delta-compensation (έC) sampling process and a novel pulse generator. The C process is sampled at the same low rate as reported algorithmic sampling processe...